Isaac Doederlein

Black Belt

Ranked competitor representing Cobrinha BJJ & Fitness.

Associations

Cobrinha BJJ & Fitness

Pedigree & Lineage

Black Belt received from:Rubens Charles

Trained under:Rubens Charles,Wellington Dias

Performance Scorecard

Dynamic skill index based on verified matches and accomplishments.

747Overall Score

Performance Rank

Gi BJJ697

No-Gi / Submission Grappling0

1IBJJF

Major Titles

Verified achievements recognized on the rankings.

1x IBJJF World Champion Gi (2022)
2x IBJJF European Silver Medalist (2022, 2025)
1x IBJJF European Champion (2020)
2x CBJJ Brazilian Nationals Champion (2019, 2023)
1x UAEJJF King of Mats Champion (2019)
3x IBJJF World Bronze Medalist (2019, 2023, 2024)
3x IBJJF Pan Bronze Medalist (2019, 2021, 2024)

Detailed Description

Isaac Doederlein is a world-class Brazilian Jiu-Jitsu black belt under Rubens 'Cobrinha' Charles, representing Alliance. Known for his dynamic and submission-oriented guard play, Doederlein has won gold at the IBJJF World Championships (2022), the CBJJ Brazilian Nationals (2019, 2023), and the IBJJF European Open (2020). He is the third American in history to win the Brazilian Nationals. Originally starting Judo at age 11 in Atlanta and BJJ at age 14 in Arizona under Wellington 'Megaton' Dias, Doederlein moved to Los Angeles at age 18 to train full-time at Cobrinha's academy, where he earned his purple, brown, and black belts.